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| 钻探 | |||
| 勘探钻井 | |||
| 勘探钻进 | |||
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Exploration Drilling : 22 phrases in 6 subjects |
| Company name | 4 |
| Drilling | 1 |
| Earth sciences | 4 |
| Engineering geology | 3 |
| Hydroelectric power stations | 1 |
| Technology | 9 |
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